Home / 328,719.76-453,635.40-192,723.28

Finding the Fourth Proportional to 328,719.76, 453,635.40 and 192,723.28

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Solution

The fourth proportional to 328,719.76, 453,635.40 and 192,723.28 is: 265,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,719.76 : 453,635.40 = 192,723.28 : x
  2. Step 2: Convert to fraction form
    328,719.76/453,635.40 = 192,723.28/x
  3. Step 3: Cross multiply
    328,719.76x = 453,635.40 × 192,723.28
  4. Step 4: Simplify right side
    328,719.76x = 87,426,102,212.11
  5. Step 5: Solve for x
    x = 87,426,102,212.11/328,719.76
  6. Step 6: Final answer
    x = 265,959.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.